Entertainment device for a small animal habitat

ABSTRACT

An animal entertainment device includes an animal powered wheel that has a pair of axle ends, each axle end having a first and second circumferential wheel having different diameters and a pair of first rails and a pair of second rails. The first circumferential wheels engages the first pair of rails in a traversable portion of the first rails, the second circumferential wheels engages the second pair of rails in an end portion of the second rails to return the animal powered wheel to the traversable portion.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The invention generally relates to a habitat for keeping a small animal and an entertainment device therefore.

2. Discussion of the Related Art

Hamsters, mice, squirrels, gerbils and many other small animals that are kept as pets are typically housed in a cage, which by itself is not a stimulating environment. Thus, toys that provide stimulation and new experiences for small animals are highly desired. Preferably, such toys are designed so an animal can learn from its own instincts to utilize the toy. Therein, even more preferable is when a toy can be utilized by the animal in a basic function such as moving from one location to another. The present invention introduces an animal entertainment device in the form of a transport wheel, which allows a small animal to do exactly that, moving from a predetermined first location to a predetermined second location and vice versa and introduces a safe way for the animal to enter and exit on its own accord.

Wheels are for small animals are known; such wheels are commonly called exercise wheels. An exercise wheel allows a small animal to run full speed to its hearts' content and obtain exercise. However, depending on the type of wheel, the animal may be stuck at exactly the same place as where it started. Such stationary wheels are can be placed on a ground or suspended in a habitat cage. Most commercial exercise wheels marketed for small animals have rungs which are not suitable for them due to the fact that an animal can be injured. A stationary exercise wheel may not fully recreate a natural habitat of small animals because of its stationary nature becomes boring for the animal. Also, a viewer watching an animal running on a stationary wheel may become disinterested within a relatively short time.

Other kinds of exercise wheels—hamster balls or cars—are essentially closed balls configured to have an inner space, into which an animal is placed and then, by its own action, ends up in a random location of the house or yard. Since the interaction is random, the use of these toys requires supervision. Unsupervised pets can become trapped against furniture, trees or bushes and panic, or they can roll down stairs, injuring themselves.

A need exists of an improved small animal habitat having an entertainment device and a means to keep the animal safely enclosed in the small animal habitat.

SUMMARY OF THE INVENTION

These and other needs are met by the present invention.

An animal entertainment device includes an animal powered wheel that has a pair of axle ends, each axle end having a first and second circumferential wheel having different diameters and a pair of first rails and a pair of second rails. The first circumferential wheels engages the first pair of rails in a traversable portion of the first rails, the second circumferential wheels engages the second pair of rails in an end portion of the second rails to return the animal powered wheel to the traversable portion.

A small animal habitat includes a base, a wall extension, and a roof that define an interior space. In the interior space, an animal entertainment device is positioned distal from the base and a platform is spaced from the base providing access to the entertainment device. A climbing structure permits access to the platform.

A first animal traversable path from the base to the animal entertainment device includes a first substantially vertical climb and a first substantially horizontal traverse on the platform.

A second animal traversable path from the base to the port includes the first substantially vertical climb, a second substantially horizontal traverse on the platform, and a second substantially vertical climb to a port in the roof.

A locking system for a small animal habitat includes a latch having a strike member and a catch having a first and a second catch section. A portion of the strike member slides over at least on catch section to secure latch to the catch. An end of the strike member slides over the first catch section by the force of gravity.

A pet habitat includes a locking system having a latch having a strike member and a catch having a first and a second catch section. A portion of the strike member slides over at least on catch section to secure latch to the catch. An end of the strike member slides over the first catch section by the force of gravity.

When the pet habitat is placed in an open position when the top portion is hingedly moved away from the bottom portion and the top portion is released from the open position, the latch engages the catch so that the end of the strike member slides over the first catch section by the force of gravity.

BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a perspective view small animal habitat in accordance with one embodiment of the present invention.

FIG. 2 a is a perspective view of a base in accordance with one or more embodiments of the present invention.

FIG. 2 b is a plan view of the base of FIG. 2 a.

FIG. 2 c is a detail view of interlocking structure disposed on a modular unit used as climbing structure or climbing structure in accordance with one embodiment of the present invention.

FIG. 3 a is a perspective view of a base, a climbing structure, and a platform in accordance with one embodiment of the present invention.

FIG. 3 b is a perspective view of the base, the climbing structure, and the platform of FIG. 2 a and an extension in accordance with one embodiment of the present invention.

FIG. 4 is a perspective view of the small animal habitat of FIG. 1 wherein a housing portion has been removed and the entertainment device is shown in a removed position.

FIG. 5 a is a perspective view of a wheel of the entertainment device traversing a rail in a portion of the small animal habitat of FIG. 1.

FIG. 5 b is a plan view of the wheel and small animal habitat in FIG. 6 a.

FIG. 6 a is a perspective view of a wheel of the entertainment device spaced from a rail in order to prevent its further movement and direct the wheel to a traversable section of a portion of the small animal habitat of FIG. 1.

FIG. 6 b is a plan view of the wheel and small animal habitat in FIG. 6 a.

FIG. 6 c is an elevational view of the wheel and small animal habitat in FIG. 6 a.

FIG. 7 is a schematic diagram of a plurality of animal traversable paths able to be taken by the resident animal accordance with one embodiment of the present invention.

FIG. 8 is a perspective view of a top portion of a small animal habitat in accordance with one or more embodiments of the present invention.

FIGS. 9 a-9 c are side views of a loft that includes a self-locking latch structure.

FIG. 10 is a perspective view of the loft of FIGS. 9 a-9 c and a support in accordance with one embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

FIG. 1 is a perspective view small animal habitat in accordance with one embodiment of the present invention. Therein, a small animal habitat 10 is suitable for one or more small animals, such as one or more dwarf hamsters, Syrian hamsters, mice, gerbils, and/or the like (“resident animal”). If suitably scaled, small animal habitat 10 may be sued with other animals.

Small animal habitat 10 comprises a base 20, one or more extensions 40, a roof 60, an animal entertainment device 70, an entertainment housing 80, and optionally one or more accessories. Although, small animal habitat 10 is illustrated to have an advantageous doubled-winged shape in plan view that permits unobtrusive storage of a water and/or feed device as illustrated for example, in FIG. 8.

FIG. 2 a is a perspective view of a base in accordance with one or more embodiments of the present invention. FIG. 2 b is a plan view of the base of FIG. 2 a. FIG. 2 c is a detail view of interlocking structure disposed on a modular unit used as climbing structure or climbing structure in accordance with one embodiment of the present invention.

Base 20 is preferably suitable for sitting on a support surface, such as a floor and preferably comprises a unitary structure 22 for stability, durability, ease of cleaning and/or ease of manufacturing. Therein, the base is preferably made by molding, including injection molding, and comprises a moldable material such as plastic or the like.

The base includes, when viewed in plan, a generally double-winged shape 24 having a substantially planar base portion 24 a, a pair of first and second bulge portion 24 b, 24 c and a pair of recessed portions 24 d located between bulge portions 24 b, 24 c and having a pair of opposed indentations 24 e. The bulge portions form an-easy-to-clean base that is also easily handled via the recessed portions by a user by placing a hand under and/or along recessed portion 24 d. Base 20 of shape 24 preferably includes a curved front edge 24 f for maximum viewing enjoyment of and/or by the resident animal. A rear edge 24 g of shape 24 is preferably linear to permit efficient placement against a wall, furniture and the like.

The base also may comprise one or more raised peripheral walls 26 to suitably prevent debris, scat, excess feed, and/or nesting material (“debris content”) from being pushed off the base and/or suitably retain debris, scat, and/or nesting material in the small animal habitat 10. The raised peripheral walls are preferably unitarily molded with the other portions of the base and raise curvilinearly from planar base portion 24 a in order to trap the debris content in the small animal habitat 10 by sliding any of the debris content that is pushed upwards by the actions of the resident animal or by intended or unintended movement of the habitat 10.

Base 20 comprises one or more receiving latch plates and/or catches 28 for joining one or more extensions 40 to the bases.

A retaining support 30 is disposed with the base to provide a stable foundation and retention for a climbing structure 92, such as one disclosed in U.S. Ser. No. 12/880,301, which is hereby incorporated by reference in its entirety for all purposes. Support 30 comprises a base portion 30 a that preferably is a portion of planar base portion 24 a delimited by a retainer 30 b disposed to preferably peripherally enclose an outer or inner perimeter portion of climbing structure 92 (FIG. 3 a). For stability, ease of manufacturing, or decorative qualities, a secondary retainer 30 c adjoins all or a portion of an exterior of retainer 30 b.

A guide 30 d may be a portion of retainer 30 b or adjacent thereto. Guide 30 d may be an indentation in retainer 30 b, a projection from retainer 30 b, a combination of one or more indentations and/or one or more projections into and/or from retainer 30 b, or any other suitable structure that helps secure and/or orient climbing structure 92 relative to retainer 30 b.

Guide 30 d may be associated with an interlocking feature that includes a receiving opening 30 e in the base, i.e., preferably in base portion 30 a and preferably adjacent to the periphery of retainer 30 b to give an animal using the climbing structure as much use of base portion 30 a as possible. A mating interlocking structure 31 is disposed on the periphery at a distal end of the climbing structure 92 (FIG. 3 a). Interlocking structure 31 includes an extension 31 a that is received in opening 30 e. To prevent unintended dislocation of extension 31 a from opening 30 e, the extension comprises an enlarged tip 31 b having an abrupt end 31 c and/or a notch 31 d.

Base 20 comprises a rim 32 that is disposed along all or a portion of a top periphery of base 20. Rim 32 comprises, when viewed in a cross-section, a flat edge receiving surface 32 a and a wall 32 b and one or more tabs or guides. Receiving surface 32 a receives a portion of a lower rim and/or edge of a wire wall and/or a wall portion of one or more extensions 40. Therein, receiving surface 32 a may have any suitable width, as determined along the cross-section of rim 32, and/or length. Wall 32 b prevents unintended dislocation of the portion of the lower rim and/or edge of the wire wall and/or the wall portion of one or more extensions 40 relative to base 20. The tabs or guides help retain the one or more extensions 40 with respect to the base. Therein, wall 32 b may have any suitable width, as determined along the cross-section of rim 32, and/or length and moreover height.

Preferably, rim 32 is cantilevered outwardly (i.e., away from the interior space of habitat 10) relative to a topmost portion of wall 26 so that an interior-most edge of receiving surface 32 a is flush with a proximal interior portion of wall 26 providing a smooth easy to clean surface.

FIG. 3 a is a perspective view of a base, a climbing structure, and a platform in accordance with one embodiment of the present invention. FIG. 3 b is a perspective view of the base, the climbing structure, and the platform of FIG. 2 a and an extension in accordance with one embodiment of the present invention.

A climbing structure 92 preferably comprises an interlock structure 31 that locks into opening 30 e. Climbing structure 92 comprises an opening 92 a and a plurality of climbing rungs 92 b.

A platform 94 may have a structure similar to that disclosed in U.S. Patent Publication 2010/0206241, which is hereby incorporated by reference in its entirety for all purposes.

Platform 94 preferably has a substantially L-shaped section comprising section 94 a and 94 b wherein the two sections are angled respective to each other by an angle 94 c by, for example, 135 degrees so that platform 94 may be used for the resident animal to reach both animal entertainment device 80 and one or more ports disposed in roof 60.

Platform 94 is preferably joined to climbing structure 92 such that the resident animal can securely climb and traverse both. Platform 94 is formed having a cross-sectional bathtub shape with a depression comprises a rounded peripheral edge 94 d. A recessed band may be disposed at a stem portion 94 e to mate with one or more indented bands 92 a provided on the climbing structure 92. An opening 94 f is disposed in the platform to provide access.

FIG. 4 is a perspective view of the small animal habitat of FIG. 1 wherein a housing portion has been removed and the entertainment device is shown in a removed position.

One or more extensions 40 may be disposed on base 20 in order to provide a peripheral wall structure to habitat 10. Multiple extensions 40 may be joined vertically so that at least one extension is disposed on top of at least another extension and/or horizontally so that at least one extension is disposed side by side on the same peripheral level of base 20.

Extension 40 may comprise a unitary structure 42 for stability, durability, ease of cleaning and/or ease of manufacturing. Therein, extension 40 may be an extension 40 a that is preferably made by molding, including injection molding, and comprises a moldable material such as plastic or the like. In addition thereto or instead, extension 40 may be an extension 40 b comprising wirewalls. One or more extensions 40 may have individually or be joined to comprise a double-winged shape 44 substantially similar to shape 44 and having bulge portions, recesses, or indentations.

Each extension 40 a preferably comprises a wall 46 a and a lower rim 48 a having a wall edge that comprises a flush end-wall portion, i.e., opposed inner and outer surface and a flat transverse surface the width connecting the inner and outer surfaces. When joined to base 20, rim 48 a and preferably the transverse surface is disposed on at least a portion of receiving surface 32 a.

Extension 40 a also preferably comprises an upper rim 50 a that includes a wall portion that is cantilevered outward from wall 46 a with respect to the interior of the cage and thereby forms a receiving surface 52 a that receives another extension 40 a, 40 b and/or other suitable cage part. One or more locking features, guides, and/or tabs 54 a may be disposed on rim 50 a retain the portion that is received on receiving surface 52 a.

Extension 40 b preferably comprises a lower rim 48 b that comprises a portion of a wirewall, which may comprise a lower edge having a wire disposed longitudinally into which one or more other wires are framed orthogonally or at an angle relative to the lower edge wire. When joined to base 20, rim 48 b and preferably the longitudinal wire is disposed on at least a portion of receiving surface 32 a. Therein, one or more locking features, guides, and/or tabs 54 a are preferably designed to receive lower rim 48 b in a locking manner so that if an extension 40 b is joined onto an extension 40 a the two extensions are joined together so that they can be lifted out together for ease of maintenance.

Extension 40 b preferably comprises an upper rim 50 b that comprises a portion of a wirewall, which may comprise an upper edge having a wire disposed longitudinally into which one or more other wires are framed orthogonally or at an angle relative to the lower edge wire. When joined to another small animal habitat part, rim 50 b and preferably the longitudinal wire is disposed on at least a portion of a receiving surface.

One or more extensions 40 may comprise a latch 56 for locking one or more small animal habitat parts together for modularity to allow user choice and for ease of maintenance. Latch 56 is secured to catch 28 on base 20 to secure extension 40 to the base or latch 56 is secured to a catch, such as one like catch 28, that is disposed on another extension 40 to secure the two extensions together.

Roof 60 preferably comprises a unitary structure 62 preferably matching in plan view the general shape of the base or any other suitable shape. Therein, roof 60 preferably includes a generally double winged shape 64 having one or more arced edge portions 64 a, pairs of bulge portions 64 b and 64 c, one or more recess portions 64 d, and a raised portion 64 e. A longitudinal domed structure 64 g corresponds to a traversable section of a rail as further described and substantially to a section 94 a of a platform 94 so that the resident animal can easily climb from the platform into the entertainment wheel and vice versa without interference from the roof.

Roof 60 further includes one or more ports 65, a rim 66, and a door 68. Roof 60 may be made of plastic and/or may include a coloration.

One or more access ports 65 may be placed at intervals through the roof to provide access for one or more accessories 90. Port 65 is preferably formed as a circular opening with a circumferential wall 65 a that extends above the portion of the roof surrounding the port. Wall 65 a may have an indent and/or guide to ease the insertion or removal of a conduit associated with an accessory 90 that is joined to cage 10 via port 65.

Rim 66 is preferably disposed at a lower edge of roof 60 and includes a wall portion that is cantilevered outward from the roof with respect to the interior of the cage and thereby forms a receiving surface 66 a that receives an upper edge of an extension 40 and/or other suitable cage part. One or more locking features, guides, and/or tabs 66 b may be disposed on rim 66 to retain the portion that is received on receiving surface 66 a.

Door 68 is preferably is joined to roof 40 via hinge 68 a. Door 68 may comprise a design and is preferably shaped to conform to a general of the cage. For example, door 68 may comprise an arced section 68 b. A latch 68 c is disposed toward an edge portion of door 68 and in cooperation with a catch that is disposed on an extension secures the door shut during use.

Entertainment device 70 comprises a wheel 72 able to move by the power of the resident animal over a pair of rails 76 a and 76 b. Wheel 72 has an open side 72 a and a substantially closed side 72 b. Closed side 72 b prevents the resident animal from unintended exit of the wheel. A plurality of ridges 72 c is provided inside the wheel. As the animal runs on the wheel, the animal pushes against the ridges and causes the wheel to move.

Wheel 72 further comprises an axle 74 that has an opening at each onto which end caps 74 a are disposed. A stem of end caps 74 a fit into the axle and effectively length axle 74. Rubber gaskets 74 b are disposed on the stem as a rubber runner. The rubber provides friction between and permits the wheel to rotate about an axis passing through the axle and provide the main traction with respect to the rail.

Rails 76 a and 76 b comprise one or more undulating shapes 78.

Entertainment housing 80 comprises a first housing portion 80 a that may be integral with roof 60, for example, by being integrally molded, or that may be joined via seam or joint 64 f to the roof and a second housing portion 80 b that is removable from the first housing portion 80 a. First housing portion 80 a includes base wall portion 81 a that and a lower rim portion 82 a that has a structure substantially similar to rim 66 and functions like rim 66.

First housing portion 80 a further includes one or more sidewall portions 83 a and 84 a that are spaced apart at a distance that permits entertainment wheel 72 to move between the sidewalls but prevents the resident animal from exiting the entertainment device. A pair of curved transverse walls 85 a is disposed at respective ends of the first housing portion. Housing portion 80 a includes an upper rim 86 a having a cantilevered wall 86 c and upstanding wall portion 86 d that retains a lower edge 86 b of second housing portion 80 b. One or more catches 87 a are disposed on first housing portion 80 a.

First housing portion 80 a preferably includes one or more recess medial portions 88 a defining in general the limits of the traversable range of axle 74 with respect to the housing. One or more rails 76 a for the entertainment device is a separate unit comprising metal and is secured in a groove in one of the medial portions 88 a. Rail 76 b is formed integral with the first housing portion in a second medial portion 88 b. Therein, rail 76 b is preferably configured as a portion of sidewall 84 a. A wall 89 e extends substantially orthogonally from respective sidewalls of first housing portion 80 a and includes end portions 89 f.

FIG. 5 a is a perspective view of a wheel of the entertainment device traversing a rail in a portion of the small animal habitat of FIG. 1. FIG. 5 b is a plan view of the wheel and small animal habitat in FIG. 6 a.

FIG. 6 a is a perspective view of a wheel of the entertainment device spaced from a rail in order to prevent its further movement and direct the wheel to a traversable section of a portion of the small animal habitat of FIG. 1. FIG. 6 b is a plan view of the wheel and small animal habitat in FIG. 6 a. FIG. 6 c is an elevational view of the wheel and small animal habitat in FIG. 6 a.

The wheel traverses rails 76 a and 76 b efficiently in a traversable section 75 of the rails extending between end portions 77 a. At an incline 77 b of end portions 77 a, a circumferential edge of cap 74 a contacts wall 89 e lifting the wheel axle, i.e., the rubber runner from contact with respective rails 76 a and 76 b and spacing the rubber gasket 74 b from the rail as shown in FIG. 7 a.

The edge of cap 74 a, e.g., the entire wheel, and incline 77 b are made of materials that have a low constant of friction relative to each other. Thus, wheel 74 preferably slips on wall 89 e in a section 89 g. If the momentum of the moving wheel carries the wheel onto a respective arced portion 89 h, arced portions 89 h and preferably a corresponding arced end portion disposed on the rail prevent the wheel's motion and reverse its direction.

Second housing portion 80 b comprises a roof portion 81 b that may have one or more openings to permit air to get into the cage. Second housing portion 80 b further includes one or more sidewall portions 83 b and 84 b that are spaced apart at a distance that permits entertainment device 60 to move between the sidewalls but prevents the resident animal from exiting the entertainment device and preferably match the spacing between sidewalls 83 a and 84 a. A pair of curved transverse walls 85 b is disposed at respective ends of second housing portion 80 b.

Housing portion 80 b includes a lower edge portion 86 b having one or more undulating portions opposite rails 76 a and 76 b The undulating portion has a shape that complements the undulating section of respective rail 76 a or 76 b, such that a constant space is maintained between the undulating portion and the undulating section of rail 76 a or 76 b. For example, when a dip is disposed in the rail, the undulating portion has a crest. One or more latches 87 b are disposed on second housing portion 80 b and cooperate with catches 87 a to secure the first and second housing portions.

The rail end portions and the respective lower edge portion 86 b cooperate as a return for automatically returning the animal powered wheel to the traversable portion. Each return comprises a rail end portion 77 a disposed on a respective rail and a support end portion 89 f disposed on a portion 89 e of a housing. Therein, the animal powered wheel 72 comprises a pair of axel ends 74, each axel end comprising a first circumferential wheel surface 74 b and a second circumferential wheel surface 74 a, wherein the first circumferential wheel portion 74 b engages the respective rail in the traversable portion. However, because the distance between edge 89 e and the respective rail is decreased in the end portion 89 f and end portion 77 a, the second circumferential wheel portion 74 a engages end portion 89 f and lifts the portion 74 b from the rail. Wheel portions 74 a and 7 b differ by a predetermined diameter distance. The difference between the top of the respective rail and edge portion 89 e is more in the traversable portion, but is less in the end portions causing a switch from the use of one circumferential wheel portion to another and the automatic return described.

Second housing portion 80 b also includes one or more medial portions 88 b having a protective wall structures 89 b that overlap medial portion 88 a of first housing portion 80 a where a rail for the entertainment device is located. Wall structure 89 b preferably includes a wall 89 i that extends outward from second housing portion 80 b and an overlapping wall portion 89 j spaced apart from rails 76 a and 76 b such that end cap 74 a can move with play between the wall portion 89 i but not become dislodged from wall 89 e, i.e., walls 77 a.

Advantageously, extensions 40, roof 60, and entertainment housing 80 are shipped disassembled with respect to each other. Once assembled, the locking features, guides, and/or tabs disposed on the respective rims lock these parts together forming a top portion of the small animal habitat that can be easily handled as a single unit for convenience of the resident animal's carer.

In use, the base of small animal habitat may be removed by opening the latches that connect the base to one or more extensions and lifting the top portion comprising one or more extensions 40, roof 60, and entertainment device 70, and entertainment housing 80 off the base. The base can then be separately cleaned and/or washed. By removing the second housing portion 80 b, the wheel can be removed and cleaned separately from the top portion.

FIG. 7 is a schematic diagram of a plurality of animal traversable paths able to be taken by the resident animal accordance with one embodiment of the present invention. When the resident animal wishes to enter the wheel, the animal can enter the climbing structure through opening 92 a and climb to platform 94 using path 12 a.

The animal then can climb over rail 76 a and into wheel 72 via path 12 b or 12 c. The animal can then continue to turn the wheel and exit by returning at any point on platform 94 a via a path 12 d since the length conforms substantially to the traversable length of the rail. Therein, an animal traversable path from the base to the animal entertainment device includes the substantially vertical climb of path 12 a and a substantially horizontal traverse 12 b on the platform and a climb over an edge of the platform or the substantially vertical climb of path 12 a and a climb over an edge of the platform 12 c.

The animal can also take path 12 e to a port wherein the substantially vertical climb of path 12 a and a substantially horizontal traverse and substantially vertical climb 12 e.

FIG. 8 is a perspective view of a top portion of a small animal habitat in accordance with one or more embodiments of the present invention. A small animal habitat 100 is configured for the same purpose as small animal habitat 10 and includes a base (not shown), one or more extensions 40, i.e., extensions 40 a and 40 b but differs in that a roof 160, an animal entertainment device 170, an entertainment housing 180, and optionally one or more accessories 190 are provided.

Roof 160 preferably comprises a unitary structure 162 preferably matching in plan view the general shape of the base or any other suitable shape. Therein, roof 160 preferably includes a generally double winged shape. Roof 160 includes one or more ports 65, a rim 66, and a door 68. Roof 160 may be made of plastic and/or may include a coloration.

Entertainment device 170 comprises a wheel 172 able to rotate in a fixed location by the power of the resident animal. Wheel 172 is configured substantially identical to wheel 72 and has an open side 172 a and a substantially closed side 172 b. Closed side 172 b prevents the resident animal from unintended exit of the wheel. A plurality of ridges 172 c is provided inside the wheel. As the animal runs on the wheel, the animal pushes against the ridges and causes the wheel to rotate.

Wheel 172 further comprises an axle 174 that has an opening at each onto which end caps 174 a are disposed. A stem of end caps 174 a fit into the axle and effectively length axle 174.

Entertainment housing 180 comprises single portion that may be integral with roof 160, for example, by being integrally molded, or that may be joined via seam or joint 164 to the roof. Housing 180 includes base wall portion 181 that and a lower rim portion 182 that has a structure substantially similar to rim 66 and functions like rim 66.

Housing 180 further includes one or more sidewall portions 183 and 184 that are spaced apart at a distance that permits entertainment wheel 72 to move between the sidewalls but prevents the resident animal from exiting the entertainment device. A pair of curved transverse walls 185 is disposed at respective ends of the housing portion and spaced from the wheel such that the resident animal can only exit via the open side of the wheel and does not become wedged by between the wheel and the walls.

Housing 180 further comprises one or more pairs of openings 186 for receiving respective stems of end cap 174 a and securing wheel 172 to housing 180.

Advantageously, extensions 40, roof 160, and entertainment housing 180 are shipped disassembled with respect to each other. Once assembled, the locking features, guides, and/or tabs disposed on the respective rims lock these together forming part of a top portion of the small animal habitat that can be easily handled as a single unit for convenience of the resident animal's carer.

In use, the base of small animal habitat may be removed by opening the latches that connect the base to one or more extensions and lifting a top portion comprising one or more extensions 40, roof 160, and entertainment device 170, and entertainment housing 180 off the base. The base can then be separately cleaned and/or washed. By removing end caps 174 a, the wheel can be loosened and removed through the bottom of the top portion and cleaned separately from the top portion.

Accessories 90 may comprise a viewing dome 96 (FIG. 8) having a transparent or translucent top with openings for vents. Dome 96 is connected to the cage via one of the ports.

Accessories 90 may also comprise a loft 97. Loft 97 is strategically placed on top of small animal habitat 10 or 100. Loft 97 preferably comprises a top portion 97 a, which preferably is dome shaped for ease of viewing outward by the resident animal and/or inward by the carer, and a bottom portion 97 b having a floor 97 c and an opening defined by stem 97 d, which is used to connect the loft to the interior of the small animal habitat via a port. The top and bottom portions of the loft may be operably connected via a hinge 97 e. Top portion 97 a preferably has a one or more air access openings 97 f. Stem 97 d is preferably integrally formed with the bottom portion.

FIGS. 9 a-9 c are side views of a loft that includes a self-locking latch structure. Loft 97 provides easy access to the resident animal and is in itself a pet habitat. The resident animal may choose to climb from the floor of base 20 through climbing structure 91 to platform 94 and specifically walk in the platform to an area disposed underneath a port. From there, the animal can climb through, if present, one more modular extensions or climbing structures, such as the ones taught in Ser. No. 12/880,301, into stem 97 d. The animal can the stay on floor 97 c. The carer can open the top via a latch 98 a disposed on top portion 97 a and a catch 98 b disposed on bottom portion 97 b and remove the resident animal for petting. The resident animal can then be returned via to the loft.

However, since carers are often children who do not pay attention as well as adults, they may inadvertently leave latch 98 a unlocked due to inattention and permit the resident animal to escape by lifting top portion 97 a relative to bottom portion 97 b. Thus, latch 98 a and catch 98 b comprise a self-locking structure.

Therein, latch 98 a comprises a strike member 98 c, i.e., a cam, that extends substantially orthogonally to a latch member 98 d, i.e., a face plate of the latch that has a plurality of ribbings for easy handling. Strike member 98 c includes a bulbous end portion 98 e. Catch 98 b comprises a double catch comprising a first catch section 98 f and a second catch section 98 g that are spaced from each other in the direction that strike member 98 c travels. The first catch section has a lesser bump than the second catch section with respect to a base. Latch member 98 d is suitably weighted so that when top portion 97 a falls down, strike member 98 c by gravity alone catches at least first catch section 98 f, i.e., bulbous end portion 98 e has slid over catch section 98 f, as illustrated in FIG. 9 b. In this way, the loft is locked automatically and the resident animal cannot escape. The member 98 d can be manually depressed causing strike member 98 c to lock against second catch section 98 g, as illustrated in FIG. 9 c, and locking more securely locking the latch.

The loft can be placed in an open position when top portion 97 a is hingedly moved away from the bottom portion 97 b. When the top portion is released from the open position, the latch engages the catch so that the strike member slides over the first catch section by the force of gravity and causing the strike member to slide over the first catch section. In this way, the self locking feature of the latch and catch locking system will cause the loft to be locked even an inattentive child has not pro-actively closed latch and catch.

In accordance with one or more embodiments of the present invention, one or more latches disposed to connect the base and extensions, the door to the extension, and/or the second entertainment housing portion to the first entertainment housing portion are configured to have the self-locking latch structure of latch 98 a and catch 98 b.

FIG. 10 is a perspective view of the loft of FIGS. 9 a-9 c and a support in accordance with one embodiment of the present invention. A support 99 comprises a receiving member into which a stem, such as stem 97 d is inserted and a plurality of splayed support members 99 a disposed in the front and/or to the rear that keep loft 97 from tipping.

In use, when small animal habitat 10 or 100 is being cleaned, the resident animal can be secured in loft 97. Loft 97 with or without the resident animal inside can then be placed on support 99. the resident animal can then be placed inside. The resident animal is held securely without the loft tipping over. The small animal habitat can then be cleaned without the resident animal being present.

While the invention has been described in conjunction with specific embodiments, it is to be understood that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the foregoing description. 

1. An animal entertainment assembly comprising: an animal powered wheel; a pair of rails, each rail having a traversable portion traversed by the animal powered wheel; a pair of returns, one return disposed on each rail, the returns for automatically returning the animal powered wheel to the traversable portion.
 2. The animal entertainment assembly of claim 1, wherein each return comprises a rail end portion and a support end portion disposed on a support of a housing portion.
 3. The animal entertainment assembly of claim 2, wherein the rail end support comprises an incline.
 4. The animal entertainment assembly of claim 2, wherein the support end portion comprises an incline.
 5. The animal entertainment assembly of claim 2, wherein the animal powered wheel comprises a pair of axle ends, each axle end comprising a first and second circumferential wheel portion.
 6. The animal entertainment assembly of claim 5, the first circumferential wheel portion engaging the traversable portion and the second circumferential wheel portion engaging the support end portion.
 7. The animal entertainment assembly of claim 5, wherein the first circumferential wheel portion comprises a smaller diameter than the second circumferential wheel portion.
 8. The animal entertainment assembly of claim 7, wherein the first circumferential wheel portion does not engage the rail end support in the return.
 9. The animal entertainment assembly of claim 5, wherein the first circumferential wheel portion does not engage the rail end support in the return.
 10. An animal entertainment device comprising: an animal powered wheel that has a pair of axle ends, each axle end having a first and second circumferential wheel having different diameters; a pair of first rails and a pair of second rails, the first circumferential wheels engaging the first pair of rails in a traversable portion of the first rails, the second circumferential wheels engages the second pair of rails in an end portion of the second rails to return the animal powered wheel to the traversable portion.
 11. The animal entertainment assembly of claim 10, wherein the first circumferential wheel portion comprises a smaller diameter than the second circumferential wheel portion.
 12. The animal entertainment assembly of claim 10, wherein the first circumferential wheel portion comprises a higher constant of friction than the second circumferential wheel portion.
 13. The animal entertainment assembly of claim 10, wherein the first circumferential wheel portion does not engage the second rail.
 14. The animal entertainment assembly of claim 10, wherein the second circumferential wheel portion engages the second rail, but not the first rail. 